Relief-valve.



C. R. HUUGHTON.

RELIEF VALVE.

APPLICATION FILED SEPT, ze. 1912 'Patented Feb. 3.7, 1914:.

.AQ A CURPEATON OF lill l Milli..

applicati on filed Septenib er To oli? 'ir/'wm iinoji/ romero Be il; known that fl, )aan ller lloooiroii a citizen of 'h-e United States, resieiug al' C nnorerille, in `the county of Fayette' and 5 Stale olf lndiaruil, have invented. a new and iieeful llelielfilaive, of Whic'lzi 'lille following' is a eiyieeilioaiiion.

in the ordinaryrelief lvalvet the opening; oi lille valve upon ihe excessive inessure Condit-ion to be guarded against eausea au iniv mediale iiliiininuton of auch igireaeure condii fion and allows lhe i,faire lo rloae directly alfiler ii iis opened., ihe'eloeing; 'in l'urn raueingl an increase in the pressure condition and areopening olf the valve. '.lfliiss 'preliouneing oil the valve whirh .is very cineos a V' ioiiiahle.

. elle object of: nu? i'nesesil invention io a relief ral "e in which lihia lionneininiilcial. 'l`hie ifi; aeron'iplished hy i Vire rerap'onsire lo the pleasure irl-a elia y having' a restricted onli-ance and oxi, o @hat lhe pressure in auch chamber can vary only in a gradual manner. B5' Jiihia means lzhe variation iu pressure due io ljie oiiieningj or Closing of 'fhe relie-ll' "alie does nel'. )Liroduee an immediate eluoising or opening," of the Yvalve.

single ,figure of the drawing; illus` lraiee a Y elferred 'forni oi my invention.

lie hase O of the relie'lj'walve has. a ee11- liral upward projeelion ll Vwhich has two spaced, pieren heads lf2 .and 13 lilztinp; the inaide of a vertically' iuoi'alile cylinder 1li. vThi@ cylinder l'iael a flange l5 for saixiporting a` Suiialile, number oli annular adjusting: weighia lo. whereby the pressure lo which ille. valve ia responsa-ive niayhe eonrolled. 'llie lowerieiid of ille iinfojeol'ion ll is hollow for Home .diai'gance ahor'e ythe linee l0. and opens iiilo ay ellaniher Q0 in Such base. This elaiiiihei, in thepreesure reliel' valve shown i Sal-ably 'eon'ueoied lo. thecpipe 2lv or other de .e within which oxfieseive preaai'ire is lo he i raided against. ,The lower hollow part oili lheprojeelxion ll. hael .a` number olf rirruin iferrnliall i'ipenii'ig's :22, prele ably 4luirrower ai the liolgloni lhan al; lhe lop. which openare normally closed hy the (cylinder ll. .in the 'lippe-r end ol? ehe lower hollow ll e ` iii,

pari oi projeel-ion lll. a vi)arse:igeway serial an. www.,

pro'rideiil with an adjue'iiig screw 24, leada -o theamuilarepaoe 25 heween the two pieton heads 12 and` 3.3; and similar passage Qlprovided with an adjusting; screw Q7. leads from such annular space 2 "lo (he chamber 28 between the piston head 13 and he closed upper end of' elle Cylinder lil.

can ineloses the other parte resting on the base l0, the space within Said cap openingy lo a chamber 3*() within the hase 10. This oiamlierh may he.` connected1 hy a pipe 3l. to any suitable dise-harige point, il desired.

,ille tho pressure within the pipe 2l iiises, Alihe liniifl under lzhe increased pressure forces its way Slowly lihrough the pz'iasages 23 and 2G into ihe chamber 2S, and. there, acting against lhe inside upper end of l'he cylinder lf'h ygradually raises auch cylinder as the preai ire in auch chamber aitains the desired niaairuiun preseure to which it is desired iihe valve he responsive.' 'llfhis preesure may he adjufsled by the uf'eighfls 16. As the Cyln der lfirises, il 'uneovera the openinga 22,

therein allowing; the ea'fapo oil' fiuid lron'i chamber 20, suoli diminution is practicallywil'houl inunediale eileet on the pressure 'within he Chamber 2S; lio\\'e\.'er, he prer- Sure' ni the Chamber 2S lends to equalize ilse/lf willi the pressure in the `chamber 20,

and (lm-fal so slowly as"`l'he l'luid` passes ihrouggh the restrirted passages 26 and 23. Thus ille inoveineul of the eyhilcler ll. hot-h upward and downwaril,r is a slow oneA` and there i5 ahsoluleljy no houneiug.

The eonsl'ructigon shown provides for the discharge of lhefllirid lroin lho relieliuvalve at a. point whirh may he roniole Alroin the 'aire il'sel'li, aa niav he dear: lilo in the ase of' noxious frases; The remote disrharge'also vlargel;Y eliininales`4 lhe noire of ope alion ol the valve.- lVlun there is no neresaily for removing lhe disrharge lo a reiuole polul,

as in eoinpreased air systems in rase the.

noise of discharge al' 'the releivalie is noi; objectionable, theplpe 3l and the cap Q9 .,se 10' the nollozv lower -entl comieeted dneetlg,T to

ole l getereilva niv inventieii:

valve, compris s vrliieb e ei i .and ivliicli d l.eliel die preson to ivliieli -v y'e is to be eid valve being provided ,vitli elnnnber control. ig tbe reled i ti sind CIT Si beng in 'i in adjustable 1 entrance passageway intermediate, greatly enlarged relier'.x valveS Comprising tivo releovfible members one of ivliieli is provvitb @penin vrliieli are covered or uncovered by suon movement and which when uncovered afford relie; for tlie'pressure condition to ivliieli tbe valve is to be isive, 'valve being provided with inbers one et which is expe-lisible and controls tbe r lative movenientof seid memcomprising tivo releine xbers providing between size of ivliieli is varied sneli Chamber being pro- :fitli an :idinsteble restrict-eel passager tlie entrante sinlm ot timid, which intermediate. greatly en- .one ot sind members f nove-ble Covered end uncovered by einen relative ient and .vliicli when uncovered pronire condition to two rele- .ting oetiveen vrliicli varied ve also having il vritli the first. ,by s A s eli second cl'aalno-n' being previo restricted 'pes-- egeivev foi' ille cnt re and exit ot' fluid, ene ot will members being' provided :in opening' vvliiffli covered and nntivelv inox o. eli: r l

. inoien uit. i i if secoue enmnlwr een vestvif ed inist;

ehe.

'i 41 en opening' ivbicli is.

l pressure Condition to ivliieli llie vtllve is 5. relief valve, comprising tivo rtl@` tively movable members providing between them a chamber the sir/le of which is varied by suoli movement7 said valve also having second chamber connected with the tiret by :i restricted passageway, such second chainber being provided with an adinsteble restricted passageway for tlie entrance exit. ot uid, end one of said members being provided with an opening which is covered :ind yuncovered by suoli relative n'iovement :ind which when uncovered provides rel: i Lt'or tlie pressure condition to ivliicli tbe valve is responsive, and' seid second. passageway communicating Wit-.li the timid container to tlie pressure in which the valve is'res pensive. '(3. A relief valve, ooinprising two relatively ioveble members providing between them sichern-ber the size of ivvliic is varied by such movement, such chamber being vided with a restricted passageway tor entrance and exit of timid7 ivliiclpasse Way lies en intermediate, greatlv enlarg portion7 and one of seid membersoeing nro- ,uncovered by such relative movement and ivhieli when uncovered provides relief toi' the pressure condition to which tlie valve is responsive, and seid passageway eoininunieating with the Huid container to the pre:- sure in which t-lievalve 'is responsive.

i. il relief valve, comprising e' relatively movable cylinder and piston providing between them e chamber by the pressure in which the reletive movement is obtained.,

ment between the cylinder end piston prddueed by the pressure inA suoli chamber, seid piston lieingprovided with e relier opening which is Covered and uncovered by suoli relative movement, sind seid chamber beingl provided with a restricted exit and estranee passageway having an interinediete,A greatly tlie eliqective size of sne'n passageway it relief valve, comprising' e relatively movable cylinder entlpiston providing between them e chamber by tbe pressure in ivnliicli the relative movement is obtained, seid piston being provided Avvitli e relief *opening which is-covereel andnncovered by suoli relative rnoi'nent,V seid valve also lieving` u second chamber connected to tbe rst 'by' restrictedpessegevvev and seid second chamber being provided with e' restricted exit end'entrence passageway, and means for adjusting the effective size of suoli esitand entrance passageway.

A relief valve comprising e ieliitivelj,Y l movable cylinder and piston ffirov'iding bei tween them a chamber by the pressure in vided with an opening which is eovereclinid adiustable vreiffiits 'which o mese the niovey enlarged portion, and Ineens for adji'isting CJR . ,2cd mln,

secfmd Ui. mbar conm( nder fm imperial-,m1,

` eaive movemnt and having this twentyfth day of September, A.

paisageway Comletmg szud one. thousand lune hundred and twelve.

J. E. HUSTON, l J 011x T. VILIHN. 

